Refactoring: handlers now implemented as classes. Module structure

handlers/message_handlers/handler.py

@@ -0,0 +1,26 @@
+from abc import ABC, abstractmethod
+from typing import Any, Coroutine, Dict
+
+from aiogram import Bot
+from aiogram.filters import Filter
+
+
+class MessageHandlerABC(ABC):
+    bot: Bot
+    
+    def __init__(self, bot: Bot, *args: Any, **kwargs: Dict[str, Any]) -> None:
+        assert isinstance(bot, Bot)
+        self.bot = bot
+        
+    @abstractmethod
+    def _command(self, *args, **kwargs):
+        raise NotImplementedError
+    
+    @property
+    def handler(self) -> Coroutine[None, None, None]:
+        return self._command        
+    
+    @property
+    @abstractmethod
+    def filter(self) -> Filter:
+        raise NotImplementedError